190501-00-00-CN | Bently Nevada Velomitor CT Velocity Transducer

Introduction: The Evolution of Vibration Monitoring

For decades, industrial plants have relied on vibration monitoring to protect rotating machinery. Early systems were bulky and limited in accuracy. Over time, the industry demanded more compact, precise, and durable sensors. The 190501-00-00-CN from Bently Nevada represents this evolution. It is a Velomitor CT velocity transducer, built to deliver dependable performance in demanding environments.

This transducer converts mechanical vibration into an electrical signal. That signal helps operators detect issues early. By catching problems before they escalate, the 190501-00-00-CN supports predictive maintenance strategies. This approach reduces unplanned downtime and extends equipment life.

Key Features and Technical Specifications

The 190501-00-00-CN offers a range of specifications that make it suitable for various industrial applications. Here are the core details:

• Sensitivity: 3.94 mV/mm/s (100 mV/in/s) ±5%.
• Frequency Response: 3.0 Hz to 900 Hz (180 to 54,000 cpm) ±1.0 dB; 1.5 Hz to 1.0 kHz (90 to 60,000 cpm) ±3.0 dB.
• Temperature Sensitivity: -8% to +5% typical over the operating temperature range.
• Transverse Response: Less than 5% of the axial sensitivity.
• Amplitude Linearity: ±2% to 63.5 mm/s pk (2.5 in/s pk).
• Mounted Resonant Frequency: 9 kHz, minimum (stud mounted, except quick disconnect).
• Output Bias Voltage: 10.1 Vdc ± 1.0 Vdc, Pin A referenced to Pin B.
• Dynamic Output Impedance: <400 Ω typical.
• Broadband Noise: 0.229 mm/s (0.009 in/s) pk.
• Base Strain Sensitivity: 0.43 mm/s/μstrain (0.017 in/s/μstrain).
• Grounding: Internal electronics are isolated from case.
• Maximum Cable Length: 305 metres (1,000 ft.) of cable (part number 02173006) with no degradation of signal.

One standout feature is the high sensitivity of 3.94 mV/mm/s. This ensures precise measurement of even small vibrations. Additionally, the wide frequency response range covers typical machine vibration frequencies. This makes the transducer versatile for many rotating assets.

Environmental Durability

The 190501-00-00-CN is built to withstand harsh conditions. Its environmental limits are impressive:

• Operating Temperature: -40°C to +85°C (-40°F to +185°F).
• Storage Temperature: -40°C to +100°C (-40°F to +212°F).
• Shock Limit: 5000 g pk, maximum.
• Humidity Limit: 100% condensing, non-submerged.
• Magnetic Field Susceptibility: <0.0068 mm/s/gauss (0.268 mil/s/gauss) @ 50 gauss, 50-60Hz.

These specifications mean the transducer can operate reliably in extreme temperatures and humid conditions. The high shock limit ensures survival in rugged industrial settings. Furthermore, the low magnetic field susceptibility minimizes interference from nearby electrical equipment.

Mechanical Construction and Mounting

The mechanical design of the 190501-00-00-CN focuses on robustness and ease of installation. Key mechanical specs include:

• Weight: <297 g (10.5 oz.), typical.
• Mounting Surface: 33 mm diameter (1.3 in diameter).
• Height: 82 mm (3.2 in).
• Case Material: 316L stainless steel.
• Connector: 2-pin 316L stainless steel MIL-C5015, top.
• Mounting Torque: 4.5 N-m ± 0.6 N-m (40 in–lbf ± 5 in-lbf).
• Polarity: Pin A goes positive with respect to Pin B when velocity is from base to top of the transducer.
• Mounting Angle: Any orientation.

The 316L stainless steel case provides excellent corrosion resistance. This is crucial for applications in chemical or offshore environments. The flexible mounting angle allows installation in tight spaces. Moreover, the MIL-C-5015 connector ensures a secure and reliable electrical connection.

Applications and Use Cases

The 190501-00-00-CN is ideal for vibration monitoring on rotating machinery. Common applications include pumps, motors, fans, compressors, and turbines. In these settings, the transducer helps detect imbalance, misalignment, and bearing wear. Consequently, maintenance teams can schedule repairs before failures occur. This proactive approach minimizes production losses and extends asset life.

For example, in a chemical plant, a pump experiencing bearing wear might show increased vibration. The 190501-00-00-CN would capture this change. The maintenance team then replaces the bearing during a planned shutdown, avoiding an unexpected breakdown.

Installation and Setup

Proper installation is essential for accurate vibration measurement. Here are some general guidelines:

• Mount the transducer securely to a flat, clean surface.
• Apply the recommended mounting torque of 4.5 N-m ± 0.6 N-m.
• Ensure the mounting surface is free from paint or debris.
• Use the specified cable (part number 02173006) for optimal signal integrity.
• Orient the transducer as needed; any orientation is acceptable.

Always refer to the Bently Nevada installation manual for detailed instructions. Following these steps helps ensure reliable data collection.

Maintenance and Reliability

The 190501-00-00-CN requires minimal maintenance. However, periodic inspection is recommended. Check the mounting integrity and connector condition regularly. Also, verify that the cable is not damaged or stressed. Environmental factors like temperature and humidity can affect performance, but the transducer is designed to operate within its specified limits.

By incorporating this transducer into a routine maintenance program, you can enhance reliability. Early detection of vibration anomalies leads to cost savings through reduced downtime and repair costs.

Compatibility and Integration

The 190501-00-00-CN outputs a standard velocity signal. This makes it compatible with most vibration monitoring systems. It can be connected to Bently Nevada monitors or other data acquisition systems. The MIL-C-5015 connector interface simplifies wiring. For best results, use the recommended cable to maintain signal quality over long distances.

Troubleshooting and Common Issues

If the transducer does not provide a signal, check the following:

• Verify the connector is properly seated.
• Inspect the cable for breaks or shorts.
• Confirm the output bias voltage is within 10.1 Vdc ± 1.0 Vdc.
• Ensure the transducer is mounted securely.

If issues persist, consult the Bently Nevada documentation or contact Petro Auto Tech for support.

FAQ about the 190501-00-00-CN

Q: What is the frequency response of the 190501-00-00-CN?

A: The frequency response is 3.0 Hz to 900 Hz (180 to 54,000 cpm) ±1.0 dB, and 1.5 Hz to 1.0 kHz (90 to 60,000 cpm) ±3.0 dB.

Q: What is the operating temperature range?

A: The operating temperature range is -40°C to +85°C (-40°F to +185°F).

Q: What is the maximum cable length?

A: The maximum cable length is 305 metres (1,000 ft.) using cable part number 02173006.

Q: What is the output bias voltage?

A: The output bias voltage is 10.1 Vdc ± 1.0 Vdc, Pin A referenced to Pin B.

Q: Is the transducer intrinsically safe?

A: For agency approval options 01 through 04, the transducer meets Ex ia IIC T4 and AEx ia IIC T4 standards.

Product Support and Availability

The 190501-00-00-CN is available from Petro Auto Tech. As an industrial automation parts supplier, Petro Auto Tech ensures genuine products and timely delivery. Contact Petro Auto Tech to check current stock and lifecycle status. This transducer is a reliable choice for your vibration monitoring needs.